Questions tagged [kdm]

KDE Display Manager (KDM) is a program that provides Kubuntu's graphical login screen.

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Make KDM the default display manager

I'm giving KDE another try - so far so good. I installed everything using apt-get install kubuntu-desktop. During the installation it asked me which login manager to use and I chose LightDM - however, ...
Sergey's user avatar
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18 votes
1 answer
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Why use a Display manager?

I'm currently trying to free as much memory as possibile because I'm using my laptop for scientific simulations. One of the things I made is disable gdm and using login+startx to start GNOME session. ...
Juan Sebastian Totero's user avatar
6 votes
1 answer
16k views

How to change the Desktop Manager

When I installed KDE Plasma in Ubuntu 15.04, I set the LightDM as the default manager, But I want to set KDM as the default, how can I change this?
Ґрадон Хатчінсон's user avatar
4 votes
1 answer
27k views

How to reconfigure lightdm? [duplicate]

Last night I installed KDE. But then however my Desktop manager changed into KDM. How can I go back to my default Desktop manager lightdm??
opu 웃's user avatar
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4 votes
2 answers
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Ubuntu 14.04 LTS login manager

So here is the problem that I am having. I came back to Ubuntu from Manjaro linux and enjoy the beautiful design. I was always a fan of the login screen/manager for Ubuntu. It was very sleek looking ...
kyaustad's user avatar
  • 103
3 votes
1 answer
3k views

How do I prevent KDM from starting at boot?

I would like to stop kdm from starting when my computer boots up. Is there a way to do that? kdm is my only graphical login program, I do not use gdm or xdm.
rjh's user avatar
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3 votes
3 answers
6k views

GDM and Lightdm don't work after update; KDM is ok

After updating Ubuntu (apt-get update, apt-get upgrade and apt-get dist-upgrade) last Tuesday, GDM stopped working, and the startup hangs on the Ubuntu logo. Lightdm also don't work (same happens). If ...
Vinícius's user avatar
3 votes
3 answers
16k views

How to install a package in recovery mode?

I was using Ubuntu 11.10 and installed the KDE Desktop and I was happy with that. But I wanted to get my old login screen back so I removed the package kdm. When I boot my PC now, it keeps booting and ...
js-coder's user avatar
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2 votes
1 answer
907 views

Macbook Pro 8.1 Keyboard Backlight on Ubuntu 11.04 With KDE

Can anyone tell me how to enable my keyboard's backlight? It works fine using gdm and Unity. I recently installed kde 4.6.5 and started using kdm, everything works fine as in unity, only my keyboard's ...
Erasmus Mann Larbi's user avatar
2 votes
1 answer
1k views

Problem with LightDM & KDM

I'm a Kubuntu 12.10 x86_64 user. I recently found an exquisite KDM theme on (name of KDE artwork site). However, as the default display manager in Kubuntu is LightDM, I installed KDM with: sudo apt-...
Jan Ligudziński's user avatar
2 votes
1 answer
790 views

Keyboard Layout resets on every startup

I want to use "German, no dead keys" (as "tot" as the layout. Whenever I log into KDE from KDM, I get the regular "German" keyboard. In other questions here I read that you have to switch the keyboard ...
Martin Ueding's user avatar
2 votes
0 answers
37 views

Why is my ubuntu display manager doing this?

I rebooted my ubuntu machine and this happened with my display manager - the options on the sidebar jumbled together. How can I fix this?
Oneiros's user avatar
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2 votes
1 answer
2k views

How to do unattended installation for packages which ask the same question?

I need to automate apt-get installation of kde-plasma-desktop which winds up installing both kdm and lightdm Display Managers. I'm using debconf-set-selections prior to installation to set the ...
BobDoolittle's user avatar
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2 votes
1 answer
4k views

upgrading from Ubuntu 14.04 to Kubuntu

I have an issue with installing KDE on my Ubuntu 14.04. I executed apt-get install kubuntu-desktop And tried to remove unity sudo apt-get autoremove --purge unity unity-common unity-services unity-...
Suic's user avatar
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1 vote
3 answers
6k views

Can you have a desktop environment without a display manager?

The following article nicely explains the differences between a display manager, a window manager, and a desktop environment: What is the relationship between Unity, Gnome, Gnome 3, Compiz, Metacity, ...
Peter's user avatar
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1 vote
2 answers
4k views

How to get username back on the Unity panel?

Installed kdm and used it as default. After i login into unity through i do not see my username.But if i go back to using lightdm, i have no problems. Anyone knows how to use kdm as default and ...
tanmay.01's user avatar
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1 vote
1 answer
453 views

Kubuntu 14.10, .zshenv is sourced twice

I have added some directories into $PATH variable in my ~/.zshenv conf file. After reboot I noticed that these paths are appeared twice. I tried to print call stacks and got the following: .zshenv ...
Grief's user avatar
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1 vote
1 answer
10k views

KDM Theme in Kubuntu 14.04

I just upgraded to Kubuntu 14.04, and when I went to reconfigure KDM (because I'm not a fan of the current theme), I realized that there was no way to add more themes, and there were only two there. ...
ExplodingKittens's user avatar
1 vote
1 answer
2k views

Kubuntu - cannot change fonts and widget style under sudo after upgrade to 11.10

I have a problem with fonts, appearance of GTK and KDE-based applications and cursors in Kubuntu 11.10 after upgrade from 11.04. I want all of my applications, both GTK and KDE, under sudo and under ...
Serge Tarkovski's user avatar
1 vote
1 answer
6k views

How to use KDM instead of lightdm in Kubuntu [duplicate]

I need to configure KDM by system settings, because lightDM is not working any more (I don't know why, just stopped working), so, is there any way to do it?
Mauricio Andrés's user avatar
1 vote
1 answer
299 views

Trouble after Ubuntu 12.10 upgrade

Over night I tried to upgrade to (k)ubuntu 12.10. Unfortunately kdm (neither lightdm) doesn't show up after boot. I found several posts describing errors due to the migration from kdm to lightdm. Some ...
highsciguy's user avatar
1 vote
1 answer
937 views

Window manager not working

When upgrading Kubuntu from 12.04 to 12.10 I agreed to stop the kdm daemon and now I can't get any window manager to initialize. I do however still have my Burg boot screen. So now how do I finish my ...
Rooster Bryant's user avatar
0 votes
2 answers
4k views

Hide users from login screen on Kubuntu 12.10

This question is a 2 part question (I know there is already a question on GDM): When I create a new user that person shows up on the login screen for Kubuntu 12.10 however I would like to hide that ...
jjesse's user avatar
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0 votes
1 answer
873 views

Lost option to use KDE after an update - how to bring it back without losing configuration

After running an update on Monday, on a Kubuntu 12.04 box, I've lost the option to select KDE in the login screen (there was a message that read approximately "option kde* has been removed"). Only "...
mikołak's user avatar
  • 103
0 votes
4 answers
8k views

Message "Call to lnusertemp failed (temporary directories full?). Check your installation?" displayed in X before KDM

This has started to happen after I encrypted my home folder (this was done after the installation, not as a part of it)... This was in 11.10. I have since upgraded to 12.04 and after first reboot ...
stuck...'s user avatar
0 votes
2 answers
2k views

KDM Login manager wallpapers

Just tinkering with KDM and having some trouble with theming. I've downloaded the beatiful zxcity theme and set it as my theme for the KDM login, problem is the wallpaper switches back during load. ...
OVERTONE's user avatar
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0 votes
1 answer
3k views

sddm xsetup location

I've been using vino (remote desktop access application) in 12.04 without any problem. I put an exec line in file /etc/kde4/kdm/Xsetup in order to start vino server when the kdm starts (like /usr/lib/...
Ricardo Cristian Ramirez's user avatar
0 votes
1 answer
320 views

Why does the KDE login screen still lead me to GNOME?

This all occurred after I (1) Built/installed Ardour 3.3 (2) Used the automatic updater to install suggested updates and (3) Installed wine, tried to open the configuration file, everything stopped ...
user182929's user avatar
0 votes
1 answer
229 views

No unity shell , no unity panel and no dual monitors

I did something terrible this morning you can see here. Now that problem was fixed , apt was working fine and so was the update manager . after installing all updates , I rebooted. And I could not ...
python_beginner's user avatar
0 votes
1 answer
1k views

KDE overrides lightdm logon screen [duplicate]

Possible Duplicate: How do I install KDE and retain LightDM as a login manager? I upgraded my KDE desktop and suddenly it overrode many parts of unity user interface such as menus, icons, and ...
Mohammad Jafar Mashhadi's user avatar
0 votes
1 answer
1k views

Why is one keyboard controlling both seats in my multiseat config?

Ubuntu 12.04 32-bit, stock install with minimal additional software I'm trying to get a multiseat X setup going... two separate keyboard/mouse/monitor sets on one PC. I used this document for ...
glibdud's user avatar
  • 747
0 votes
1 answer
608 views

Kubuntu 16.04 black screen after installing a different graphical login screen display manager

I'm using Kubuntu 16.04. After installing the lightdm graphical login screen display manager, when booting it goes to a black screen. How do I fix this so that Kubuntu will boot normally?
Sonu's user avatar
  • 1
0 votes
1 answer
1k views

How to create a guest-session in Kubuntu 14.04 (kdm)

I would like to add a guest-session on a computer with Kubuntu 14.04 LTS and KDM as login manager. The guest account should be non persistent like in Ubuntu 12.04 (account uses only /tmp file) I've ...
kFly's user avatar
  • 223
0 votes
2 answers
83 views

Too Many Lock Screens

I installed a few different GUI environments for Ubuntu 14.04 and I finally settled on KDE. However, when I lock my desktop and come back to it I have to sign in twice... I have two different ...
user306261's user avatar
0 votes
1 answer
368 views

Kubuntu + kdm blank desktop

I recently did a sudo apt-get install kubuntu-desktop. Reboot loaded a kubuntu splash screen, then loaded the unity desktop. I read you needed kdm to handle the log in screen, so I did sudo apt-get ...
user2977486's user avatar
0 votes
0 answers
32 views

KDM Login Will Not Accept Username & Password [duplicate]

I have just installed KDE , set up my preferred environment (with desktop cube effects color scheme, set the splash screen to "minimalist" and also installed ksnapshot.) Installation was done with the ...
Val Irwin's user avatar
0 votes
1 answer
702 views

personalize session list on (KDM|GDM|LightDM|some_other)

A bit of an odd question: I want to change the list of sessions available on (KDM|GDM|LightDM|some_other) to a user, without affecting the sessions available to others. Specifically, I have one user ...
josinalvo's user avatar
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0 votes
1 answer
1k views

Log in manager doesn't appear after editing /etc/X11/default-display-manager

I have ubuntu 11.10 , and I installed kde and I choosed kdm mistakly, as mentioned here I did this procedure Pretty simple. Open the file /etc/X11/default-display-manager with your editor of ...
Hamed's user avatar
  • 514